<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        sapn {width: 500px;
            height: 600px;

        }



    </style>
</head>
<body>
    <!-- 一行显示多个 不可以设置宽高 宽高都是由内容撑开 -->
    <span>sapn1sapn1sapn1sapn1sapn1sapn1sapn1sapn1</span>
    <sapn>spam2</sapn>
    <sapn>span3</sapn>
</body>
</html>